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Simplify code. No functionality change. 

llvm-svn: 93114
This commit is contained in:
Benjamin Kramer 2010-01-10 09:51:00 +00:00
parent 1a05fddcdc
commit 307c2c7ebc
1 changed files with 1 additions and 18 deletions
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19
clang/lib/Lex/HeaderMap.cpp
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@ -173,17 +173,6 @@ const char *HeaderMap::getString(unsigned StrTabIdx) const {
return FileBuffer->getBufferStart()+StrTabIdx;
}
/// StringsEqualWithoutCase - Compare the specified two strings for case-
/// insensitive equality, returning true if they are equal. Both strings are
/// known to have the same length.
static bool StringsEqualWithoutCase(const char *S1, const char *S2,
unsigned Len) {
for (; Len; ++S1, ++S2, --Len)
if (tolower(*S1) != tolower(*S2))
return false;
return true;
}
//===----------------------------------------------------------------------===//
// The Main Drivers
//===----------------------------------------------------------------------===//
@ -226,13 +215,7 @@ const FileEntry *HeaderMap::LookupFile(llvm::StringRef Filename,
if (B.Key == HMAP_EmptyBucketKey) return 0; // Hash miss.
// See if the key matches. If not, probe on.
const char *Key = getString(B.Key);
unsigned BucketKeyLen = strlen(Key);
if (BucketKeyLen != unsigned(Filename.size()))
continue;
// See if the actual strings equal.
if (!StringsEqualWithoutCase(Filename.begin(), Key, BucketKeyLen))
if (!Filename.equals_lower(getString(B.Key)))
continue;
// If so, we have a match in the hash table. Construct the destination